Devices, systems and/or methods for myopia control

Abstract

The present disclosure is directed generally to a lens that provides a stop signal to a myopic eye, over a substantial portion of the spectacle lens that the viewer is using. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a micro lenslet array. The present disclosure is also directed to devices, methods and/or systems of modifying incoming light through spectacle lenses that utilizes chromatic cues to decelerate the rate of myopia progression. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a refractive optical element and/or diffractive optical element that offer conflicting or contradictory optical signals at a wavelength between 510 nm and 610 nm.

What is claimed is: 
     
       1. An ophthalmic lens for reducing the rate of myopia progression in a myopic eye comprising:
 a base lens with a focal power to correct, at least in part, the refractive error of the eye; and 
 at least one micro lenslet array comprising a plurality of micro lenslets; 
 wherein a central portion of the ophthalmic lens is devoid of the plurality of micro lenslets; and 
 wherein the ophthalmic lens is configured to modify incoming light, when used on a myopic model eye having a retinal plane and correctable by the focal power of the base lens at a monochromatic wavelength, by introducing conflicting chromatic cues; 
 wherein the conflicting chromatic cues comprise a conflicting optical signal received at the retinal plane and the conflicting optical signal comprises a first proportion of light that is in focus and a second proportion of light that is out of focus. 
 
     
     
       2. The ophthalmic lens of  claim 1 , wherein a center-to-center spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is 0.5, 1, 2, 3, 4, 5 mm or combinations thereof. 
     
     
       3. The ophthalmic lens of  claim 2 , wherein a center-to-center spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is about 1 mm. 
     
     
       4. The ophthalmic lens of  claim 1 , wherein the center-to-center spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is between 1 mm and 3 mm. 
     
     
       5. The ophthalmic lens of  claim 1 , wherein the border-to-border spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is 0, 0.05, 0.1, 0.5, 1, 2, 3, 4 mm or combinations thereof. 
     
     
       6. The ophthalmic lens of  claim 1 , wherein the border-to-border spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is at least 0, 0.05, 0.1, 0.5, 1, 2, 3, 4 mm or combinations thereof. 
     
     
       7. The ophthalmic lens of  claim 1 , wherein the border-to-border spacing between two or more micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is between 0 and 0.05 mm, 0.05 and 8 mm, 0.1 and 0.5 mm, 0.2 and 10 mm, 0.2 and 0.4 mm, 1 and 3 mm, 2 and 5 mm or combinations thereof. 
     
     
       8. The ophthalmic lens of  claim 1 , wherein the plurality of micro lenslets in the at least one micro lenslet array has a fill ratio of between 10% to 30%, 20% to 40%, 20% to 50%, or 30% to 50% and satisfies the following equation:
   Fill Ratio[%]=(( d 2*π)/(4* s 2))*100
 
 where d 2  is the squared diameter of the individual micro lenslet and s is the center-to-center distance between adjacent individual micro lenslets. 
 
     
     
       9. The ophthalmic lens of  claim 1 , wherein the plurality of micro lenslets in the at least one micro lenslet array has a fill ratio of between 10% to 30%, 20% to 40%, 20% to 50%, or 30% to 50% and satisfies the following equation across a 50 mm lens blank:
   Generalized Fill Ratio[%]=((Lenslet Area)/(Total Spectacle Area))*100. 
 
     
     
       10. The ophthalmic lens of  claim 1 , wherein a fill ratio of the plurality of micro lenslets in the at least one micro lenslet array is 5%, 10%, 20%, 25%, 30%, 40%, 50%, 60%, 70% or 80% of the total surface area of the at least one micro lenslet array. 
     
     
       11. The ophthalmic lens of  claim 1 , wherein a fill ratio of the plurality of micro lenslets in the at least one micro lenslet array is between 10% to 20%, 10% to 30%, 20% to 40%, 20% to 50%, 30% to 50%, 40% to 60%, or 20% to 80% of the total surface area of the at least one micro lenslet array. 
     
     
       12. The ophthalmic lens of  claim 1 , wherein a fill ratio of the plurality of micro lenslets in the at least one micro lenslet array is at least 5%, 10%, 20%, 25%, 30%, 40%, 50%, 60%, 70% or 80% of the total surface area of the at least one micro lenslet array. 
     
     
       13. The ophthalmic lens of  claim 1 , wherein the shape of one or more of the micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array is one or more of the following: a sphere, an asphere, extended odd polynomial, extended even polynomial, conic section, biconic section, toric surface and Zernike polynomials. 
     
     
       14. The ophthalmic lens of  claim 1 , wherein one or more of the micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array has one or more of the following shapes: circular, non-circular, oval, rectangular, hexagonal, and square. 
     
     
       15. The ophthalmic lens of  claim 1 , wherein one or more of the micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array has a circular shape. 
     
     
       16. The ophthalmic lens of  claim 1 , wherein one or more of the micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array has a shape comprising a toric surface. 
     
     
       17. The ophthalmic lens of  claim 1 , wherein one or more of the micro lenslets of the plurality of micro lenslets in the at least one micro lenslet array has a shape defined, at least in part by Zernike polynomials. 
     
     
       18. The ophthalmic lens of  claim 1 , wherein a focal length of the plurality of micro lenslets in the at least one micro lenslet array are substantially the same (e.g., two or more micro lenslets have the same focal length). 
     
     
       19. The ophthalmic lens of  claim 1 , wherein a focal length of the plurality of micro lenslets in the at least one micro lenslet array vary (e.g., two or more micro lenslets have different focal lengths). 
     
     
       20. The ophthalmic lens of  claim 1 , wherein the plurality of micro lenslets in the at least one micro lenslet array have 1, 2, 3, 4, or 5 different focal lengths.